Unknown

CVE-2026-68322 — rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled

In the Linux kernel, the following vulnerability has been resolved: rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, inet6_addr_lst is never initialized because inet6_init() exits before addrconf_init() is called to initialize it. An attempt to bind an RDS socket to an ipv6 address results in a crash in __ipv6_chk_addr_and_flags() KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] RIP: 0010:__ipv6_chk_addr_and_flags+0x1df/0x7e0 Call Trace: <TASK> ipv6_chk_addr+0x3b/0x50 rds_tcp_laddr_check+0x155/0x3b0 [rds_tcp] rds_trans_get_preferred+0x15d/0x2d0 [rds] ? trace_hardirqs_on+0x2d/0x110 rds_bind+0x1433/0x1d60 [rds] ? rds_remove_bound+0xd50/0xd50 [rds] ? aa_af_perm+0x250/0x250 ? __might_fault+0xde/0x190 ? __sys_bind+0x1dc/0x210 __sys_bind+0x1dc/0x210 ? __ia32_sys_socketpair+0x100/0x100 ? restore_fpregs_from_fpstate+0x53/0x100 __x64_sys_bind+0x73/0xb0 ? syscall_enter_from_user_mode+0x1c/0x50 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f47f8269ea9 </TASK> The following code reproduces the issue: struct sockaddr_in6 addr; s = socket(PF_RDS, SOCK_SEQPACKET, 0); memset(&addr, 0, sizeof(addr)); inet_pton(AF_INET6, ADDRESS, &addr.sin6_addr); addr.sin6_family = AF_INET6; addr.sin6_port = htons(PORT); bind(s, &addr, sizeof(addr)); Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller.

Published Aug 10, 2026 · Updated Oct 16, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.22%

ahead of 12% of scored CVEs · Oct 30, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < 7809344be3f0c1bbfdfdde1cefafeec14bf52d51≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < 438dec9b0a06bd1f8db8c58539c655e735e17367≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < b61c9eb5931bb7389bc104faacd8c17d910da65d≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < 8e48d7ab1e01936a172ff31531904b003895fd8c≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < a8302e758050e6a922765aee8d220a4fd350f52d≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < f6787fdffcae5490c779f0f3f33b11597525d1ae≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < 00d5707217b5972554898ff734ae7b71bce704e6≥ eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 and < 9c805e592a29be9e4e61ff1bd567da04aa8fd6f9 and 1 more version 4.19	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 30, 2026 · 15 reading(s) · max 0.22%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 16, 2026
Affected products added · linux/linux
Oct 16, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Aug 10, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

8 on the record

git.kernel.org/stable/c/a8302e758050e6a922765aee8d220a4fd350f52d
NIST National Vulnerability Database
git.kernel.org/stable/c/b61c9eb5931bb7389bc104faacd8c17d910da65d
NIST National Vulnerability Database
git.kernel.org/stable/c/00d5707217b5972554898ff734ae7b71bce704e6
NIST National Vulnerability Database
git.kernel.org/stable/c/7809344be3f0c1bbfdfdde1cefafeec14bf52d51
NIST National Vulnerability Database
git.kernel.org/stable/c/f6787fdffcae5490c779f0f3f33b11597525d1ae
NIST National Vulnerability Database
git.kernel.org/stable/c/9c805e592a29be9e4e61ff1bd567da04aa8fd6f9
NIST National Vulnerability Database
git.kernel.org/stable/c/8e48d7ab1e01936a172ff31531904b003895fd8c
NIST National Vulnerability Database
git.kernel.org/stable/c/438dec9b0a06bd1f8db8c58539c655e735e17367
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Unknown CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 2d
Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 2d
Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 2d
Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 2d
Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 2d
Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 2d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-68322 is "rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.22% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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